JPH05502195A - Board straightening device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Board straightening device The present invention provides a plurality of options for forming a flat plate guide duct that is adjustable and supported on a pedestal. Straightening device for board and similar vertical wood products with inner body, board guide duct extends along the vertical axis of the pedestal and can be adjusted around the vertical axis of the pedestal by adjusting the guide. The present invention relates to said device with variable torsion.

Boards and similar thin, vertical wood products can be flattened using chip-free cutting techniques. It is cut from a square lumber or tree trunk. These planks or similar wood products cannot be bent. but also torsion, i.e. these wood products are twisted around their longitudinal axis. Ru. This deformation makes automatic machining of the plate difficult in many applications. By processing The greater the torsional force generated, the more the blade that cuts the board will be aligned in the longitudinal direction of the wood. The layers are shifted diagonally.

With a known device of the type mentioned at the outset (West German Patent Specification No. 3701127) A twisting process can be carried out on the board, so that the board is It loses its twist and becomes suitable for subsequent processing.

In this known device, inside a plurality of guide frames that overlap one another as plate material guides, A roller is supported in each case as a plate guide. The guide frame rotates around a common axis. For example, the guide frame forms a plate guide duct around the vertical axis of the pedestal, and the The twist about the axis is selected such that the twist undoes any existing twist in the plate. Ru.

The torsion of the board differs depending on the manufacturing conditions, the type of wood, and the characteristics of the wood. In this device, the guide frame is brought into the respective required swivel position by a separate swivel drive. Equipped with Controlling these individual swivel drives is relatively expensive. Furthermore, this public The structural cost for conventional devices is relatively high.

Known device for bending thinned workpieces to be glued (U.S. Pat. No. 2399348), a movable bending stop is attached to one of the fixed bending stops. A number of parallel-guided bending stops are placed in position on the fixed bending stop for pressing the pad. to.

It is movable relative to the bar. However, the workpiece is not twisted, but rather has flexure. . Furthermore, the workpiece is not inserted into the guide duct and the bending stress of both groups is carried out before its adjustment.

It is installed between the bars.

The object of the invention is to provide a device of the type mentioned at the outset, which has a simple construction and is very robust. and in a simple manner, the plate guide duct can be adjusted. Ru.

According to the present invention, the guide body is a thin guide plate, and the thin guide plate extends in the longitudinal direction of the mount. two sets of sheets extending and forming a sheet guide duct with their mutually opposed sheet edges; located in the guide duct and against the guide plate near the inlet side of the plate guide duct. each separately by means of a swiveling drive around a common laminar swivel axis extending laterally. The solution is that it is pivotable.

The guide lamellas of each lamina center are in this way offset relative to each other, i.e. both lamina center The plate guide duct formed between the adjusted accordingly. The change in twist is caused by the plate passing through the plate guide duct in its longitudinal direction. counteracts the torsion obtained during its manufacture, and causes this movement of the plate around its longitudinal axis. The original twist of the plank is twisted so that the original twist is lost and the lost plank becomes true. Directed.

Due to the change in torsion of the plate guide duct, each '1 RFJ, the fan shape of the seven-way guide plate. It is sufficient that the opening of the legs is varied by different pivoting of the individual guide plates. individual This turning adjustment of the thin guide plate is achieved by the plate guide duct formed between both sets of thin plates. The width is maintained at each point in the near future, so that the board passes through the board guide duct. The planks can then be sufficiently guided to carry out the straightening process. Sea urchins are supplied to sea urchins.

The structure of this device is very simple, since the movable parts This is because only one guiding thin plate is provided, ignoring the adjustment drive device for this purpose.

These guide plates are mutually guided and supported by a fan-shaped arrangement in the plate centimeter. can be implemented as a very stable member, resulting in a structurally very No other guidance is required for the guide plate outside the pivot bearing, which should be easily implemented in No need. This allows for a very compact construction of the plate straightening device and its As a result, the plate straightening device is placed immediately after the processing point where the plate is produced without chips. can be done.

Preferably all guide plates of each set of plates have a common swivel drive and an individual design. The inner slats can be pivoted differently such that the individual guide slats can be fanned out. are combined so that The structural costs for the swivel drive are thereby reduced to be lowered in quality. Instead, a separate swivel drive for the guide plate is provided. You can also be

A particularly simple and robust embodiment of the swivel drive allows the swivel drive to pass through the hole in the thin plate. The rotation of an axis that extends transversely to the guide plate of the set and parallel to the longitudinal axis of the mount. It has an adjustment rod that can be tilted. In this tilting movement of the adjustment rod, the attached thin plate set All the guide plates of the vehicle have different swivel angles.

Other advantageous developments of the invention are specified in the other claims.

Next, embodiments of the present invention will be described in detail based on the drawings.

Fig. 1 is a simplified side view of the device for straightening plate material, Fig. 2 is an arrow shown in Fig. 1. Front view of the device according to FIG. 1 seen in the direction of I+, FIG. 3 seen in the direction of arrow III A front view of the device according to Figure 1, and Figure 4 shows both sets of thin plates pulled out upwards and downwards. Figure 5 is a side view similar to Figure 3 but shown in the open position; It is a front view showing a state.

The illustrated device separates flattened timbers or tree trunks using chip-free cutting techniques. This figure shows a straightening device for flattened boards and 114m tall flat wood products. This wood product , hereinafter simply referred to as "r plate material 1", is indicated by arrow 2 from the population side on the right side of Figure 1. enter the direction and leave the device on the opposite exit side (Fig. 1 left).

The device has a pedestal 3, and the pedestal has a lower FR plate 4 and an upper FR plate 4 that overlap vertically. A thin plate set 5 is arranged. Each thin plate set 4, 5 is flat and has a narrow width. It consists of a thin guide plate 6 with its side facing down, with the configuration ``narrow side facing down''. ``te'' refers to the position of the plate 1 at the entrance.

The thin guide plate 6 extends in the longitudinal direction of the pedestal and is placed between the edge 7 of the thin plate 7 on the opposite side. A board guide duct 8 is formed that extends in the vertical direction of the stand and has a tear line around the vertical axis 9 of the stand. do. This twist of the plate guide duct 8 is due to the rotation of its longitudinal axis that occurs when cutting the plate. counteracts the natural twisting of the wood. This allows the plate to pass through the plate guide duct. At that time, it goes through a straightening process to straighten it.

The thin plate edge 7 that partitions the plate material guide duct 8 has a circular shape when viewed within the normal plane of the frame axis 9. As a result, sharp edges 111 do not enter the board guide duct 8, and the board Material l is not damaged. In particular, as can be seen from Figures 1 to 3, the departure form already shown in the figure In this situation, the thin plate set 7 is more or less inclined with respect to the horizontal plane of the wood, and its As a result, the plate guide duct 8 already has a twist in the starting state. In other words, each thin plate The guide plates 6 of sets 4, 5 have a plate guide duct 8 in the area of their longitudinal edges 7. The legs are opened in a fan shape so that there is a twist, and the "twist" is at least approximately The course of the plate guide duct 8 wound around the longitudinal axis 9 of the base is referred to. Guide plate set The fan-shaped spread legs of Toto 6 are particularly visible in FIG. There, both thin plate sets 4.5 are The legs are pulled downward and upward, resulting in a fan-like spread of the legs.

The guide thin plate set 6 of each thin plate set 4 or 5 is located at the entrance of the plate guide duct 8, respectively. of a common laminar pivot axis 10 or 11 extending transversely to the guide laminated set 6 in the vicinity; They can each be rotated independently. In this way, the torsion of the plate guide duct 8 is adjusted. Possibilities are achieved. Each pattern indicates that the torsion that exists after the manufacture of board 1 is completely removed. The size is chosen such that it can be removed, resulting in a straight board. vi, The twist that exists next in wood 1 depends on the manufacturing conditions and the properties of the wood, especially humidity and temperature. Ru.

The adjustment of the guide plates 6 is carried out by means of a swivel drive, in which both sets of plates 4, 5 are adjusted. A separate swivel drive is provided for each, the swivel drive being , is implemented in such a way as to allow different pivoting of the individual guide plates.

In the embodiment shown, this swiveling drive for each set of laminae 4, 5 has a hole 14 or 1 An adjustment rod 12.4a extends transversely to the guide plate 6 of the plate 7)4.5. It has 13. The mount 3 is controlled by a common controllable servo motor 15 (Fig. 3). Rotary drives 16 and 16' arranged on both sides drive the gourd through the rotary drive. One screw spindle 17, 17' in each case extends upwardly. Double turning speed The controls 17, 17' each have a lower tuning via one gigoin [8, 18']. The lower adjustment rod, which acts on both ends of the adjustment rod 12, protrudes to the side of the pedestal 3. servo motor When actuating the cylinder 15, the screw spindle 17.17'' has one position 18 upwards. and the other zigopoint 18' is moved downwardly. that accent The straightening rod 12 allows tilting movement around a tilting axis 19 extending parallel to the longitudinal axis 9 of the frame. implement. As is clear from FIG. It is located near the exit side.

Each joint 18.18" through the vertical lateral thrust rod 20.20" Both upper adjusting rods 13 are It is pivoted to the end. Therefore, in the adjustment movement described, the upper adjustment rod 13 is also aligned with the vertical axis of the gantry. Tilting around a tilting axis 22 extending parallel to line 9, with the upper adjusting rod 13 is held parallel to the lower adjustment rod 12.

By this adjustment movement, the plate material guide duct 8 at one outlet end is □ as shown in Figure 3. The diagonal position can be changed. Screw spins that can be driven synchronously and in opposite directions in the described embodiments The tilting drive formed by the buckle 17 and the thrust rod 20.20' is the other eg synchronized units acting on the adjusting rods 12, 1.3 or on the individual guide plates 6. It can also be implemented with one drive.

If the lower set of thin plates 4 is directly supported on the pedestal 3, the upper set of thin plates 5 is It is supported by a support frame 23, and in order to open the plate guide duct 8, the support frame is The opening drive, in the illustrated embodiment, can be lifted by a lift cylinder 24. Ru. This released state is shown in FIG. The plate guide duct 8 is released by the plate. To remove wood chips that may be generated when the plate material 1 guided into the material guide duct 8 is damaged. It is necessary to be able to do this.

To enable lifting of the upper set of laminations 5, a thrust rod 20.20' is the thrust rod 20 when the upper set of laminations 5 is lifted in the described manner. ．． Bar lock 25.25 that can be opened to allow telescoping 20° ’.

As shown in FIG. There is a pair of rollers 26 provided, which rollers serve to remove the board 1 from the frame 3. . The plate material 1 is supplied by a feed roller (not shown) or a feeding movement during the production of the plate material. will be carried out.　′ In the embodiment shown, the plate guide duct 8 already has a twist in its basic position, i.e. passes through a horizontal board guide duct 8 at the entrance (Fig. 2) and exits diagonally at the exit (Fig. 3). Ru. Instead, the plate guide duct 8 runs without twisting in the starting position and guides It is also conceivable that the adjustment of the sheet set 6 results in correspondingly large deviations.

The adjustment range of the guide plate 6 is chosen to be substantially larger than in the case shown in FIG. Can be done. Separate swivel drive for each guide plate for an extra large adjustment range It is reasonable to provide such equipment.

FIG.3 f Summary book (the purpose) It is an object of the present invention to provide a plate straightening device that has a simple structure, is very sturdy, and is simple. The object of the present invention is to configure the plate guide duct so that it can be adjusted in a simple manner.

(composition) According to the present invention, in the plate straightening device, the guide body is a thin guide plate; extends in the longitudinal direction of the frame, and its mutually opposing thin plate edges form a plate guide duct. arranged in two sets of laminations and close to the inlet side of the plate guide duct. Each individually pivots around a common laminar pivot axis extending transversely to the guide laminae. It is made pivotable by a moving device.

international search report international search report , PCT/EP 90102266 S^　43156

Claims (1)

[Claims] 1. Adjustably supported on the pedestal (3), forming a flat plate guide duct (8) A straightening device for board material (1) and similar vertically elongated wood products equipped with a plurality of guide bodies, The plate material guide duct extends along the vertical axis of the mount, and can be adjusted by adjusting the guide body. In said device with variable torsion about the longitudinal axis (9), the guide body is A thin plate (6) whose guiding thin plate extends in the longitudinal direction of the pedestal and whose mutually opposite thin plate edges (7) arranged in two sets of thin plates (4,5) forming a plate guide duct (8) and against the guide plate (6) near the entrance side of the plate guide duct (8). Rotate each separately around a common thin plate rotary coaxial line (10 or 11) extending laterally. Rotary drive device (12, 13, 15, 16, 16', 17, 17', 18, 18', 20, 20', 21'). 2. All guide sheets (6) of each sheet set (4, 5) share a common swivel drive (1 2, 13, 15, 16, 16', 17, 17', 18, 18', 20, 20', 21, 21') and the individual guide thin plates (6) so that the upper thin plate can be opened into a fan shape. 2. The device according to claim 1, wherein the device is differentially pivotably connected. 3. A swivel drive guides the sheet set (4 or 5) through the holes (14, 14a) It has an adjustment rod (12 or 13) that extends horizontally to the thin plate (6), and the adjustment rod Tilt parallel to the axis (19 or 22) extending parallel to the longitudinal axis of the table (9) 3. The device according to claim 2, wherein the device is capable of: 4. Adjustment rods (12, 13) protrude from the upper set of thin plates (4, 5) at both ends thereof. Tilting drives (15, 16, 17, 17', 1 8, 18', 20, 20'). 5. Both adjustment rods (12, 13) of both sets of thin plates (4, 5) are attached to the adjustment rod (1 2, 13) with a common tilting drive so that they are held parallel to each other during their tilting movements. connected to the device (15, 16, 17, 17', 18, 18', 20, 20') 5. The apparatus of claim 4. 6. The adjustment rods (12, 13) are arranged near the outlet side of the plate guide duct (8). 5. The device according to claim 4, wherein: 7. 2. Device according to claim 1, characterized in that each guide plate (6) is provided with a separate swivel drive. . 8. One of the two thin plate sets (5) is one of the thin plate sets (5) and the other thin plate set (4). The opening drive device (24) in the pedestal (3) The device according to claim 1, wherein the device is arranged so as to be adjustable laterally with respect to the line (9). Place. 9. The thin plate edge (7) of the thin guide plate (6) facing the plate guide duct (8) is rounded. 2. The device of claim 1.